`ip address`

Syntax

ip address <ipv4_addr/prefix-length> [secondary]

no ip address <ipv4_addr/prefix-length> [secondary]

Description

Sets the IPv4 address for a loopback interface.

The no form of this command reverses the set of the IPv4 address for a loopback interface.

Command context

config

Parameters

<ipv4_addr/prefix-length>: Specifies the IPv4 address with prefix-length for the loopback interface. Format: A.B.C.D/M

secondary: Indicates that the IPv4 address is a secondary address.

Authority

Operators or Administrators. Users without administrator authority can execute this command from the operator context (>) only.

Examples

switch# configure terminal
switch(config)# interface loopback 1
switch(config-loopback-if)# ip address 16.93.50.2/24
switch(config-loopback-if)# ip address 20.1.1.1/24 secondary